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      10-25-2012, 12:19 PM   #11
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Drives: '07 E90 335i
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Originally Posted by NoTempoLimitN54 View Post
Mike Miller is recommending 5k intervals for the N54. I think it will depend on your driving style and conditions (temperature, etc.). But I think 15k is too much unless you do mostly highway driving and live in in a warm climate where it rarely gets colder than 50 F.
Sounds about are my results after an 8k mile run of RLI Bio-SynXtra HD 5w40:

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